Cursor Functions

Tag Specification Frame

A tag specification frame describes how to use the tag index to subset the entries in the cursor. It consists of one or more of the following slots, each of which holds a symbol or an array of symbols:

equal
Matches those entries whose tags contain only this symbol or symbols. To obtain entries that have no tagged slot (or have a nil or [] value), use equal: [].

all
Matches those entries whose tags contain this symbol or symbols.

none
Matches those entries whose tags contain none of these symbols.

any
Matches those entries whose tags contain any of these symbols.


An online version of Programming for the Newton using Macintosh, 2nd ed. ©1996, 1994, Julie McKeehan and Neil Rhodes.

Last modified: 1 DEC 1996